Dissertationes on select subjects in chemistry and medicine / [Martin Wall].

  • Martin Wall
Date:
1783
Catalogue details

Licence: Public Domain Mark

Credit: Dissertationes on select subjects in chemistry and medicine / [Martin Wall]. Source: Wellcome Collection.

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    “ the Air, Fire, Water, Heat, Cold, Moi- “ flure. Wind, &c-: by various experiments, “ made with the air-pump and other fuit- “ able inftruments: but it is the bufin^s of philofophical Chemiftry more intimately “ and elTentially to examine the internal na- ‘‘ ture,fl:ru(Ture, compofition, operations, and “ relations of thefe Elements ; and thence “ it finds modes of applying them as en- gines and inftruments of bufinefs either ** feparately or in co-operation with thofe “ folvents or menflrua, which have always ‘‘ been confider’d peculiarly as chemical agents This illuftration, which points out the exad limits of thefe two branches of fcience, and particularly fliews, that in the paflage above cited from M. Macquer, Che- miftry is but partially and imperfedlly de- fined, will ferve alfo to introduce a Definition more accurately correfpondent to the princi- .ples of diftinftion here laid down. A celebrated ProfefTor in a Northern Uni- verfity defines Chemiflry to be a Sdence, which teaches by experiments the effeSis of heat a?id mixture 07i bodies: a definition, which will be found more truly applicable * Lewis, Comm. Phil. Tech. Preface. and